MP6509 2.7-18V, 1.2A Bipolar Stepper Motor Driver TSSOP-20

Product

MP6509 2.7-18V, 1.2A Bipolar Stepper Motor Driver TSSOP-20

Share

pMPS MP6509 — Bipolar Stepper Motor Driver, 2.7-18V input, 1.2 A output, TSSOP-20./p

[email protected]

MPS TSSOP-20 Power Management Motor Drivers & Controllers Motor

Product Details
Download

MP6509 2.7-18V, 1.2A Bipolar Stepper Motor Driver TSSOP-20

The MPS MP6509 is a Bipolar Stepper Motor Driver. It operates from a 2.7 V to 18 V input and is rated for 1.2 A. It is supplied in a TSSOP-20 package.

The MP6509 is a bipolar stepper-motor driver with dual, built-in full-bridges consisting of N- channel power MOSFETs.

Key Specifications

Part Number	MP6509
Function	Bipolar Stepper Motor Driver
Input Voltage	2.7 V to 18 V
Current Rating	1.2 A
Package	TSSOP-20
Ordering Codes	MP6509

Features

Wide 2.7V to 18V Input Voltage Range
Two Internal Full Bridge Drivers
Low On Resistance(HS:250mΩ; LS:250mΩ)
Four Selectable Current Attenuation Modes
Internal Charger Pump for the High-Side Driver
Low Quiescent Current:1.6mA
Low Sleep Current: 1uA
Over-Current Protection
Thermal Shutdown and UVLO Protection
Fault Indication Output

Typical Application Circuit

Applications

POS Printers
Video Security Camera
Digital Still Cameras

Design Notes

Set dead time to match the external FET turn-off, not the datasheet typical. Too little risks shoot-through, too much distorts the current waveform at low duty cycle.
Use a Kelvin connection for the current-sense resistor; shared copper injects switching noise straight into the sense amplifier.
The thermal pad is the only heat path for most packages — via-stitch it to a ground plane with at least 9 vias.
PWM frequency trades switching loss against current ripple in the motor inductance; 20 kHz keeps the drive out of the audible band.
Add a brake or coast path so regeneration during a fast stop does not pump the supply rail.